Ratchet-wheel and the like.



E. B. HARRIS.

RATGHET WHEEL AND THE LIKE.

APPLIUATION FILED JUNE 18,1913.

1,1@%,666e Pa n ed July 21, 19M.

awe/Mo's tirrn TATES PATNT EDWARD E. HARRIS, OF VALLIAN'I, OKLAHOMA,ASSIGNOR TO CORONA llIANUFAC- 'I'URING 00., OF VALLIANT, OKLAHOMA, ACORPQRATION 015 OKLAHOMA.

RATCI-IET-NHEEL AND THE LIKE.

LMMLQGG.

To all whom it may concern:

Be it known that I, EDWARD E. HARRIs, a citizen of the United States,residing at Valliant, in the county of McCurtain and State of Oklahoma,have invented certain new and useful Improvements in Ratchet- Vheels andthe like, of which the following is a specification.

This invention has particular reference to the ratchet wheels of curtainrollers and fixtures; its immediate object being to provide a-ratchetwheel-which can be readily attached to the roller, and which whenproperly applied will be fixedly attached to such roller and beincapable of rotation thereon, and will also act as a bond or tie forthe end of the roller to prevent splitting or spread ing thereof; thusproviding an extraordinarily serviceable ratcheted roller capablewithstanding long and heavy use with safety, and enabling same tosupport more weight by virtue of the peculiar snug fitting of theratchet wheel to the roller.

While the invention is especially adapted for use with rollers forshades, maps, and the like, it is not restricted to a ratchet wheel, asit is well adapted for securing pinions, or disks, to the ends ofrollers, shafts and the like.

As shown in the accompanying drawingsFigure 1 is a perspective viewshowing the roller, ratchet and gudgeon pin in position for assembling.view of the ratchet fitted on the end of a roller. Fig. 3 is a similarview with the gudgeon pin in position. Fig. 4 is a side view of Fig. 3.Fig. 5 is a longitudinal section on line 55, Fig. 4. Fig. 6 illustratesa ratchet wheel embodying the invention and having ordinary ratchetteeth.

The ratchet wheel 1 may be of any desired diameter and is preferablyflat; and may be stamped or cast. It is provided with an annular opening1 substantially corresponding in internal diameter to the externaldiameter of the roller to which it is to be attached; or to a cylindricprojection on the end of such roller. This ratchet wheel is providedwith four inwardly projecting equi-distant radially disposed arms orspokes 1 which are preferably straight-sided; and

their inner ends preferably do not quite come into contact with eachother, leaving a central opening 1 at the center of the wheel. The armsor spokes 1 are in the Specification 01 Letters Patent.

Application filed June 18, 1913.

Fig. 2 is an end Patented July 21, 1914.

Serial No. 774,455.

plane of the wheel, and are adapted to engage similarly disposed,intersecting chan nels 2" in the end of the roller gr shaft 2 to whichthe wheel is attached. These channels 2 may be formed by forciblypressing the ratchet wheel into the end of the roller, if of wood, orcan be previously cut in the end of the roller by a saw; the ribs 1being practically as wide as the kerf of an ordinary saw.

The ratchet wheel may be secured in of the shaft or roller as shown,with the arms 1 seated in the notches or slots 2" and the outer end ofthe roller being flush with the outer surface of the ratchet wheel. Thearms and notches effectively prevent relative rotation of the wheel androller, and the end of the roller is confined within the rim of thewheel, which forms a band or collar around the end of the roller andeffectively prevents spreading of the latter.

The ratchet wheel may be secured in position against endwise movement onthe roller by means of an ordinary curtain roller gudgeon pin 8 whichcan be driven into the end of the roller, when of wood, in the usualmanner through the central opening 1 in the ratchet wheel; and said studhas an annular collar 3, as usual, which projects over the inner ends ofthe arms 1* and holds the wheel in position against the end of theroller and also prevents any of these arms being bent outwardly, orprojecting outwardly, so as to interfere with any object adjacent theend of the roller, or side of the ratchet wheel.

The ratchet wheel shown in Figs. 1 to 5 is preferably formed with doublefaced teeth 1; and such a ratchet wheel can be put on the roller eitherface outermost, and it does not matter which face of such ratchet wheelis outermost, as it will always be in position to operate efficientlyand be properly engaged by the pawl (not shown).

In the form shown in Fig. 6 the ratchet wheel has ordinary ratchetteeth. and such wheel must be placed on the roller 2 with the teethpointed in the proper direction, otherwise they would not properlyengage the pawl. When the roller is of wood the ratchet wheel can bepressed onto the end of the roller and the arms bedded therein, thusestablishing a rigid connection therebetween and having a smooth surfaceon the end of the roller. If the roller is of metal the kerfs orchannels 2* must be out before the wheel is fitted thereto. If it isdesired to apply the ratchet wheel to a roller or shaft of largerdiameter than the opening 1 in the wheel, the end of the roller or shaftshould be reduced to the diameter of this opening so that the wheel maybe fitted thereon. When applied to a metal roller or shaft pin 3 mightbe substituted by a screw; and obviously a screw-threaded pin could beused in place of a nail pin; but the invention is especially designedand adapted for use with the ordinary gudgeon pin.

The ratchet wheel shown in Figs. 1 to 5 is reversible and operatesequally well either face out or from either side, thereby eliminatingthe caution necessary in applying the ordinary ratchet wheels torollers.

What I claim is: 1. In combination a roll having radially disposedrecesses in its end, a flat disk-like member attached to the recessedend thereof having a circular opening to receive the end of the roll andprovided with arms projecting into said opening and seated in saidrecesses in the end of the roll.

2. In combination a roller having radially disposed recesses in its end,a flat disk-like member on the recessed end thereof having a circularopening to receive the end of the roller and provided with radiallydisposed arms projecting into said opening and seated in thecorresponding recesses in the end of the roller; and an axially disposeddevice passing through such member and engaging the end of the roller.

' 3. In combination a roller having radially disposed recesses in itsend, a flat wheel having an opening fitted to the end of vthe roller,and radially disposed arms extending into said opening and seated in thecorresponding recesses in the end of theroller; with a device extendingaxially through the wheel and engaging the roller.

4:. In combination with a shade roller having shallow radial channels inits end, a

flat ratchet wheel having an opening fitted to the end of the roller,and having radially disposed arms extending into said opening and seatedin the corresponding channels in the end of the roller; with a gudgeonpin extendingaxially through the ratchet wheel and engaging the roller.

5. A reversible ratchet wheel for the pur pose specified comprising aflat disk-like member having squared or double faced teeth on itsperiphery,a large axial opening, and a series of radial armsextending-into said opening but connected at their inner ends to leavean axially disposed space for the passage of a retaining device.

6. In combination with a roller having shallowiradial channels in itsend, a fiat ratchet Wheel having a circular opening fitted to the end ofthe roller, and having radially disposed arms projecting into theopening and seated in the corresponding radially disposed channels inthe end of the roller, and a gudgeon-pin passing axially through theratchet wheel and engaging the inner ends of the arms and the roller,substantially as described.

In testimony whereof I aliix my signature, in presence of two witnesses.

EDWARD E. HARRIS. Witnesses i H. Moses,

SAML HnRsTEIN.

' Sonics of this patent may be obtained for five cents each, byaddressing the Commissioner of Baton, I iWashington, D. G.

